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Ammonite
Ammonite

Austinite
Austinite



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Ammonite
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Austinite

Ammonite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

-99994.12
1 7.18
👆🏻

Fracture

-
Uneven

Cleavage

None
Good in two directions parallel to the prism faces {110}

Mohs Hardness

3.5-54-4.5
2 10
👆🏻

Chemical Composition

CaCO3
CaZn(AsO4)(OH)

Ammonite and Austinite Chemical Formula

While comparing Ammonite and Austinite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Ammonite and Austinite chemical formula.

  • Chemical formula of Ammonite- CaCO3
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Ammonite and Austinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ammonite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ammonite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Ammonite is 4.12 whereas that of Austinite is 4.12.